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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 13
16.
It is best to use for coupling a coaxial line to a parallel wire transmission line.
directional Coupler
balun
slotted line
tee
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
In H-plane metal plate lens the travelling wave front is
totally retarded
retarded
accelerated
neither accelerated nor retarded
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
MUF is depend upon
electron density of the ionospheric layer
11 year sun spot cycle
received frequency by receiver
height of ionospheric layer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as
transmission efficiency
front to back ratio
loss coefficient
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Which of the following is not between F2 layer and D layer?
E layer
F1 layer
G region
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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